This is a mini NFC smart card designed to solve some of the pain points encountered by individuals when using IC cards, based on STM32L051 and ST25DV.
I thought that since I wanted to make this thing myself, I would make it cool, so I consciously added an e-ink screen and also wrote a supporting APP for display content customization. All in all, it is an interesting small project. The scheme is not too complicated. There are also some areas worth improving in the first version of the design. I will continue to optimize the scheme design when I have time.
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